# SHA-384 Hex Digest of UTF-16LE Encoded Text

> SHA-384 Hex Digest of UTF-16LE Encoded Text is a paid API for AI agents from agentshelf.syntexa.ch, paid per call via x402, $0.007/call, status unknown (last checked 2026-10-02).

Computes a SHA-384 cryptographic hash of the UTF-16LE byte representation of input text and returns it as a lowercase hex string

## Facts

- Endpoint: POST https://agentshelf.syntexa.ch/v1/digest-sha384-hex-utf16?utm_source=zero.xyz
- Price: $0.007/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-02
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/sha-384-hex-digest-of-utf-16le-encoded-text-214491e7
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_M6hgPOo_a2rGOQGW0Lkh7

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability sha-384-hex-digest-of-utf-16le-encoded-text-214491e7 -d '<json body>'
```

Example prompt: Compute the SHA-384 hex digest of the UTF-16LE bytes of the text 'Hello, World!' using the key 'mykey123'.

## When to prefer this

Use this endpoint when you specifically need SHA-384 (not SHA-256 or SHA-512) applied to the UTF-16LE byte encoding of a string (common in Windows/.NET environments or when interoperating with systems that use UTF-16LE natively). Choose this over generic hashing libraries when you need a paid, auditable, API-based computation without running local code. If a free sandbox endpoint (POST /v1/sandbox/digest-sha384-hex-utf16) is available, prefer that first to avoid the $0.007 charge.

## Known failure modes

- Text exceeds maximum length of 100,000 characters — request rejected
- Key string is empty or exceeds 512 characters — validation error
- Malformed JSON body — 400 bad request
- Payment not attached or insufficient USDC — 402 payment required
- Service temporarily unavailable — 503 error

## How this service works

Call when an agent needs a sha384 digest of utf16le bytes, encoded as hex. Exact $0.007 USDC. Prefer unpaid POST /v1/sandbox/digest-sha384-hex-utf16 first.

## Output

Returns a lowercase hexadecimal string representing the SHA-384 cryptographic digest of the input text after it has been encoded as UTF-16LE bytes. The digest is 96 hex characters long (384 bits).

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "key": {
   "type": "string",
   "maxLength": 512,
   "minLength": 1,
   "description": "HMAC secret. Required on HMAC SKUs. Omit it for plain digests and checksums. The key is not stored."
  },
  "text": {
   "type": "string",
   "examples": [
    "hello"
   ],
   "maxLength": 100000,
   "minLength": 1,
   "description": "Message to digest. For raw-hex SKUs this is hex bytes; for utf16 or latin1 SKUs it is decoded with that encoding. Otherwise it is UTF-8 text."
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/sha-384-hex-digest-of-utf-16le-encoded-text-214491e7/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from agentshelf.syntexa.ch](https://www.zero.xyz/host/agentshelf.syntexa.ch/llms.txt)